Ko kana muviri wevharuvhu ukaita ngura? Tsanangudzo yakadzama yekubatanidza maitiro e-multi-turn valve drive mudziyo (I)

Ko kana muviri wevharuvhu ukaita ngura? Tsanangudzo yakadzama yekubatanidza maitiro e-multi-turn valve drive mudziyo (I)

Nekufambira mberi kwehunyanzvi, kugadzirwa kwemaindasitiri kwekupisa kwakanyanya, kudzvanywa, kutonhora kwakadzika, vacuum yakakwira, ngura yakasimba, radioactive, inopfuta uye inoputika uye mamwe maparamita akakwira emamiriro emhirizhonga ari kuwedzera, wobva waisa mberi uye zvakanyanya kuomesera zvinodiwa kuchengetedzwa kwekushandiswa kwevhavha, basa rekambani uye hupenyu hwebasa.
Sezvo ngura ichiitika mukudyidzana kunongoerekana kwaitika pakati pesimbi nenzvimbo yakatenderedza, nzira yekuparadzanisa simbi kubva kune yakatenderedza nharaunda kana kushandisa yakawanda isiri-metallic synthetic zvinhu ndiyo inotarisisa kudzivirira ngura. Valve corrosion, inowanzo nzwisiswa sevharuvhu simbi zvinhu mukemikari kana electrochemical kwezvakatipoteredza chiito nekuparadzwa.
Kuora muviri kwevharuvhu mumhando mbiri, dzinoti kemikari ngura uye ngura yemagetsi. Kuora kwayo kunoenderana nekupisa, kudzvanywa, kemikari zvimiro zvepakati uye kushorwa kwekupokana kwezvinhu zvemuviri. Corrosion speed inogona kukamurwa kuita matanho matanhatu:
1, kukwana kwekusagadzikana kwegora: kumhanya kwecorrosion isingasviki 0.001 mm/gore;
2, kushorwa kwakanyanya: corrosion speed 0.001 kusvika 0.01 mm/gore;
3, kusadzivirirwa kwekuora: kumhanya kwekuora 0.01 kusvika 0.1 mm / gore;
4, kusadzivirirwa kwekuora: kumhanya kwekuora 0.1 kusvika 1.0 mm / gore;
5, kushomeka kwekushomeka: kumhanya kwekuora 1.0 kusvika 10 mm / gore;
6, kusadzivirirwa kwekuora: kumhanya kwekuora kwakakura kupfuura 10 mm / gore.
Kunyange zvazvo data yevhavha yekudzivirira muviri yekudzivirira yakapfuma, asi hazvisi nyore kusarudza zvakanaka, nokuti dambudziko rekuora rakanyanya kuoma, saka ndedzipi nzira dzekudzivirira dzevhavha muviri corrosion?
Chokutanga pane zvose, sarudza zvinhu zvakakodzera. Kusarudzwa kwevhavha yemuviri zvinhu zvakaoma, asi zvakare haigoni kufunga nezvedambudziko rekuora, inofanira kufunga nezvekumanikidzwa uye kupisa kwekushisa, hupfumi hunonzwisisika, nyore kutenga uye zvimwe zvinhu.
Iko kutora chiyero chekuyera chinotevera, kana mutsara unotungamira, mutsara wealuminium, mutsara weinjiniya epurasitiki, mutsara wakasikwa rabha uye ese marudzi esynthetic rabha. Kana mamiriro epakati achibvumidza, iyi inzira yekuchengetedza.
Zvakare, munyaya yekuderera kwepasi uye kutonhora, kushandisa isiri-simbi sechinhu chikuru chevhavha inogona kuwanzoshanda zvikuru mukudzivirira kuora.
Uye zvakare, iyo yekunze yemuviri wevharuvhu zvakare iri pasi pekuora kwemuchadenga, general simbi zvinhu zvinokwesha pendi kudzivirira.
(a) mudziyo unoshandiswa kushanda nekubatanidza vharuvhu. Chishandiso chinogona kufambiswa nemanyorero, magetsi, pneumatic, hydraulic kana kusanganiswa kwavo kwemasimba masimba, uye maitiro ekufambisa anogona kudzorwa nesitiroko, torque kana axial thrust. Shandisa vara F uye seti yemanhamba maviri (manhamba ndiwo maitiro anoenderana neD3, akatenderedzwa pasi uye akakamurwa negumi). Iyo axial simba inofambiswa nekubatanidza flange uye dhiraivha kuburikidza nedhiraivha mudziyo inoratidzwa muNewton (N). Iyo nguva yekutenderera inofambiswa nekubatanidza flange kune drive kuburikidza nedhiraivha mudziyo inoratidzwa muNewton metres (N “m).
1, chiyero,
Iyi chiyero inotsanangudza mazwi uye tsananguro dzeakawanda-turn valve madhiraivha, maflange makodhi uye anoenderana yakakura torque uye yakakura kusundidzira. Zviyero zveflange zvakabatana nevharuvhu, chimiro uye zviyero zve drive zvikamu.
Iyi chiyero inoshanda kune zviyero zvekubatanidza zvevhavha mavharuvhu egedhi, globe, throttle uye diaphragm mavharuvhu, pamwe nehupamhi hwekubatanidza hwemidziyo yekutyaira kumabhokisi egiya uye mabhokisi egiya kumavharuvhu.
2. Normative reference zvinyorwa
Izvo zvinopihwa nemagwaro anotevera zvakabatanidzwa mune iyi chiyero chepasi rose nereferensi. Zvese zvakagadziridzwa (kusingasanganisire errata) kana kudzokorora kune mareferensi emazuva haashande kune iyi International Standard. Zvakadaro, mapato ari muchibvumirano pasi peiyi International Standards anokurudzirwa kuti aongorore kuwanikwa kwe *** shanduro dzemagwaro aya. *** vhezheni dzemareferenzi asina zuva anoshanda kune iyi International Standard.
GB/T 196 Common thread basic dimensions (GB/T 196-2003,IS0 724; 1993, MOD)
3. Mitemo uye Tsanangudzo
drive
Chishandiso chinoshandiswa kushanda nekubatanidza vharafu. Chishandiso chinogona kufambiswa nemanyorero, magetsi, pneumatic, hydraulic kana kusanganiswa kwavo kwesimba masosi, uye maitiro ekufambisa anogona kudzorwa nesitiroko, torque kana axial thrust.
Multiple turn drive
Iyo inobuda shaft inogona kutenderedzwa kamwechete uye inogona kumira kusunda kana actuator ichiendesa torque kuvharuvhu.
torque
Iyo nguva yekutenderera inofambiswa nekubatanidza flange kune drive kuburikidza nedhiraivha mudziyo inoratidzwa muNewton metres (N “m).
kusunda
Iyo axial simba inofambiswa nekubatanidza flange uye dhiraivha kuburikidza nedhiraivha mudziyo inoratidzwa muNewton (N).
Flange code
Shandisa vara F uye seti yemanhamba maviri (manhamba ndiwo maitiro anoenderana neD3, akatenderedzwa pasi uye akakamurwa negumi).
4, flange kodhi torque yakati hombe uye yakakura kumhanyisa
Iyo torque uye inosimudzira yakanyorwa muTebhurari 1 inomiririra yakakura torque uye kusundirwa kunogona kufambiswa kuburikidza neflange uye actuator yechishandiso chekutyaira.
Tafura 1 Kuenzanisa kwe torque yakakura uye kukosha kwekusimudza kweFlangde no.1
5, flange yekubatanidza saizi
Flange inobatanidza actuator kune valve sezvakaratidzwa mumufananidzo 1 uye tafura 2.
FIG. 1 yekubatanidza dhizaini yekutyaira mudziyo uye vharafu
Tafura 2 Flange zviyero zve actuator yakabatana nevhavha mu mm
Iyo flange inobatanidza mudziyo wekutyaira kune vharuvhu ichave yakachinjika flange ine pfudzi rinowanikwa, uye saizi yaro yakakodzera ichave maererano ne d2 muTable 2.
Iyo actuator inogona kubatanidzwa nevhavha nema studs kana mabhoti. Kana mastud connections akashandiswa, dhayamita yemakomba emakumbo inofanira kufanana nechiyero D4 muTebhu 2. Thread maererano neGB/T 196.
Hurefu hudiki hweshinda yevharuvhu yekutyaira unit sezvakatsanangurwa muTafura 2 h1.
Flange yekunze denderedzwa dimension, zvinoenderana netafura 2 D1 (zvishoma).
Matudhi kana maburi maburi anofanirwa kudzikamisa axis yedhiraivha mudziyo symmetrical kugovera. Ona Mufananidzo 2.
FIG. 2 Nzvimbo yezvitubu nemabhoti maburi